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Finding the Fourth Proportional to 23,909.80, 35,880.90 and 10,755.40

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Solution

The fourth proportional to 23,909.80, 35,880.90 and 10,755.40 is: 16,140.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,909.80 : 35,880.90 = 10,755.40 : x
  2. Step 2: Convert to fraction form
    23,909.80/35,880.90 = 10,755.40/x
  3. Step 3: Cross multiply
    23,909.80x = 35,880.90 × 10,755.40
  4. Step 4: Simplify right side
    23,909.80x = 385,913,431.86
  5. Step 5: Solve for x
    x = 385,913,431.86/23,909.80
  6. Step 6: Final answer
    x = 16,140.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.